adjusting AI to recent tech changes etc.

git-svn-id: https://freeorion.svn.sourceforge.net/svnroot/freeorion/trunk@5687 dbd5520b-6a0a-0410-a553-f54834df5b05
- Prevented ships from attacking planets of which they have only basic visibility.

git-svn-id: https://freeorion.svn.sourceforge.net/svnroot/freeorion/trunk@5688 dbd5520b-6a0a-0410-a553-f54834df5b05
finishing off what appeared to be incomplete editing to Stellar Tomography from when infrastructure based production/research was ripped out

git-svn-id: https://freeorion.svn.sourceforge.net/svnroot/freeorion/trunk@5689 dbd5520b-6a0a-0410-a553-f54834df5b05
Merge remote-tracking branch 'svn-mirror/master'